"OMG my daughter will love this and she is dairy intolerant and she loves her ice cream," one person commented on their Facebook post.
"This is so exciting! I can actually eat your ice cream without getting sick now!!" another said.
Ben & Jerry's opened its first New Zealand store on Ponsonby Road, Auckland, in 2015.
Since then, three more stores have opened in Auckland, one in Hamilton and one in Wellington.
In July this year, Ben & Jerry's announced it will open stores in Christchurch and Queenstown.
Ben & Jerry's says the Christchurch store will be open before the end of summer, between November 2018 and February 2019.
They have not confirmed a time frame for Queenstown yet.